Twine-tension device.



N0. 656,428.` Patented Allg. 2|, |900.

' W. S. SHERD.

TWINE TENSION DEVICE.

(Application filed May 18, 1900.) (No Model.)

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UNITED STATES PATENT OEEICE.

WILLIAM S. SIIERD, OF BELVIEV, MINNESOTA.

TWIN E-TENSION DEVICE.

SPECIFICATION forming part of Letters Patent No.`656,428, dated August 21,1900. Application filed May 18, 1900. atrial No. 17,081. (No model.)

To all whom t may concern:

Be it known that I, WILLIAM S. SHEED, a citizen of the United States, residing at Belview, in the county of Redwood and `State of Minnesota, have invented certain new and useful Improvements in Twine-Tension Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apperiains to make and use the same.

My invention has for its object to provide an improved twine-tension device; and to this end it consists of the novel devices and combinations of deviceshereinafter described,and deined in the claims. Twine-tension devices of this character are especially adapted for use in connection with twine-binders; but they are capable of more general use where ever it is desired to put a yielding tension onto a cord or twine.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views. i

Figure l is a side elevation showing my improved tWine-tension device, and-Fig. 2 is an end elevation of the same with one of the gear-` wheels removed.

The principal feature of this invention consists in the employment of a pair of beveled gears or similar corrugated intermeshi'ng parts, which are yieldingly pressed together and between which t-he twine is adapted to be passed.

In the drawings the numeral l indicates a block or bearingq having a pair of reversely but angularly projecting shafts Vor studs 2 3, which are driven into suitable seats in said block or otherwise secured, the latter of which is screw-threaded at its outer end and provided with a nut 4. Mounted one on each shaft 2 3 and intermeshing with each other is a pair of beveled gears 5, that work in planes intersecting at an Vacute angle. The gear on the shaft 2 is held against sliding movement by a pin G, while the gear on the shaft 3 is yieldingly pressed toward the cooperating geaIl by a coiled spring 7 on said shaft 3, compressed between the nut l and a washer 8,`which di rcctly engages thehub of the said yielding gear 5. The teeth on the gears 5 are as long as possible, to give an extended engaging surface for the cord. The twine or cord (indicated by the character z) is passed through suitable guides, which direct the same between the intermeshed teeth of the gears 5. As shown, these guides are formed by a pair of perforated ears 9 and lO, projected from the block l, and preferably also by a guidearmll, projected from the ear 10.

The action of the device above described `will be as follows: The twine should be drawn through the device in the direction indicated by the arrow marked on Fig. 2. In passing between the gears the twine of course separates them more or less, depending on the tension of the spring 7. The greater the tension of the spring 7 the Inore deeply the twine will be pressed between the teeth of the gears, and consequently the greater will be the tension. put upon the twine, or, in other words, the greater will be the power required to rotate the two gears. Hence it is obvious that the adjustment of the nut 4c makes it possibleto put any desired tension on the twine. This device while extremely simple is very efficient.

It will of course be understood that the device above described is capable of considerable modification within the scope of my invention.

What I claim, and'desire to secure by Letters Patent of the United States, is as follows:

1. A twine-tension device comprising a pair of intermeshing beveled gears, and guides for directing the twine between the intermeshing gear-teeth, substantially as described.

2. A twine-tension device,comprising a pair of intermeshing bevelgears, guides for directing the twine between said gears, a spring pressing said gears together, and means for varying the tension of said spring, substan tially as described.

3. In a twine-tension device, the combination with the support l having the projecting shafts 2 and 3, of the guides 9, 10, the intermeshing beveled gears 5, one on each shaft 2, 3, and the spring 7 and nut 4 on the shaft 3, said parts operating substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM S. SHERD.

Witnesses:

A. E. WESTON, A. O. GIMMESTAD.

IOO 

